# goserv

> Boilerplate for how I like to write a backend web service

## Build

```bash
export GOFLAGS="-mod=vendor"
go mod tidy
go mod vendor
go generate -mod=vendor ./...
go build -mod=vendor .
```

```bash
./goserv run --listen :3000 --serve-path ./overrides
```

## Eamples and Config Templates

The example files are located in `./examples`

-   Caddyfile (web server config)
-   .env (environment variables)
-   build.sh

## Dependencies

This setup can be run on a VPS, such as Digital Ocean, OVH, or Scaleway
for \$5/month with minimal dependencies:

-   VPS
-   Caddy
-   PostgreSQL
-   Serviceman

**Mac**, **Linux**:

```bash
curl -fsS https://webinstall.dev | bash
export PATH="$HOME:/.local/bin:$PATH"
```

```bash
webi caddy serviceman postgres
```

### VPS Setup

You should have a domain pointing to a VPS and create a user account named `app`
(because that's a common convention). This script will create an `app` user,
copying the `authorized_keys` from the root account.

```bash
my_vps='example.com'
ssh root@"$my_vps" 'curl -sS https://webinstall.dev/ssh-adduser | bash'
```

You can then login as a normal user.

```bash
ssh app@"$my_vps"
```

It is now safe to disable the root account.

### Caddy (Automatic HTTPS Server)

```bash
curl -fsS https://webinstall.dev/caddy | bash
```

You can start Caddy as a system service under the app user like this:

```bash
sudo setcap 'cap_net_bind_service=+ep' "$(readlink $(command -v caddy))"

sudo env PATH="$PATH" \
    serviceman add --name caddy --username app \
    caddy run --config ./Caddyfile
```

See the Cheat Sheet at https://webinstall.dev/caddy
and https://webinstall.dev/serviceman

### PostgreSQL (Database)

```bash
curl -fsS https://webinstall.dev/postgres | bash
```

You can start Postgres as a system service under the app user like this:

```bash
sudo env PATH="$PATH" \
    serviceman add --name postgres --username app -- \
    postgres -D /home/app/.local/share/postgres/var -p 5432
```

Username and password are set to 'postgres' by default:

```bash
psql 'postgres://postgres:postgres@localhost:5432/postgres'
```

See the Cheat Sheets at https://webinstall.dev/postgres
and https://webinstall.dev/serviceman

## License

Copyright 2020. All rights reserved.